When uploading your images before we build your app, you may notice error messages that prevent you from uploading your three images. Please see the list below to determine the error.
Image cannot contain transparency!
.PNG files have the ability to contain transparency. Please double-check that your image has no transparency (especially in the corners or edges). Transparency will show in an image editor (such as Pixelmator) as a checkerboard.
If you do not see the checkerboard, there may still be transparency. Try adding a solid colored background layer in your image editor to remove the transparency.
Image must be exactly ____ pixels!
Your image is the wrong size; you will need to resize it.